JP2010112436A - Expansion joint of multi-vessel type water storage tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an expansion joint of a multi-vessel type water storage tank, in which piping having the precise length of piping is laid, so that water-tight piping is connected. <P>SOLUTION: At least two-vessel type water storage tank is formed of a desired square by connecting a square panel via a packing. In the water storage tank, piping is laid straddling the inside of the adjoining water storage tank, so that the water in the water storage tank is discharged outside of the water storage tank. The connection part of the piping is covered by the expansion joint composed of the first joint and the second joint for adjusting the length of the piping. The first joint and the second joint each have a flange formed at one end, and an O-ring mounting recess for mounting an O-ring on the lower outside of the flange. At each of the other ends of the first joint and the second joint, a screw is provided in the upper part or the lower part, and is cut so as to be threaded with each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a water storage tank having a desired rectangular shape by connecting rectangular panels and separating the water storage tank by a partition plate to form a multi-tank water storage tank, and a piping pipe straddling the inside of one of the water storage tanks. The present invention relates to an expansion joint of a multi-tank water storage tank that connects piping pipes to each other when piping. In particular, according to the present invention, by using the expansion joint of the multi-tank water storage tank, the length of the piping pipe can be precisely piped, and a watertight piping pipe can be connected.

In conventional pipe connections, for example, as disclosed in JP-A-2001-336686, a joint between pipes and pipes is covered with a joint, and an O-ring is attached between the pipe and the joint to maintain watertightness. ing.
JP 2001-336686 A

  Since the water storage tank assembled by connecting the square panels is easily partitioned by the partition plate, it can be a multi-tank type. The multi-tank water storage tank can easily drain, clean, maintain, or inspect the inside of one water storage tank. The multi-tank water storage tank is provided with piping pipes straddling the inside of each tank in order to facilitate internal cleaning, maintenance, inspection, or the like. However, the multi-tank water storage tank assembled by connecting the rectangular panels has a high dimensional accuracy of the rectangular panels, but the dimensions of the piping pipes vary.

  Even if the piping pipe of the water storage tank has a slight error in size, there is a risk that water leaks because of high water pressure. For example, the water storage tank is usually made of a size of about 8000 × 4000 × 6000 mm by assembling a 1000 mm square partition plate. Even if the water storage tank is partitioned at an intermediate position, it is necessary to straddle it with a 4000 mm pipe. However, the pipe is required to have a dimensional accuracy of 1/1000 or less in order to maintain watertightness under the water pressure of the depth. An off-the-shelf piping pipe usually does not have the dimensional accuracy, and water leakage occurs at the connection portion.

  In order to solve the problems as described above, the present invention absorbs the error even if there is an error in dimensional accuracy between a water storage tank assembled with a square panel and a piping pipe straddling the water storage tank. An object of the present invention is to provide an expansion joint for a multi-tank water storage tank that does not cause water leakage due to high water pressure.

(First invention)
The expansion joint of the multi-tank water storage tank in the first invention is a multi-tank water tank assembled so that it can be separated by a partition plate by connecting rectangular panels, and at least one of the multi-tank water tank. At least one of a pipe and a connecting part that connects the pipe in the water storage tank. A first joint provided with a screw at the upper part or the lower part, and a second joint provided with a flange and an O-ring mounting recess at one end and a screw threadedly engaged with the first joint at the lower part or the upper part at the other end An O-ring mounted in an O-ring mounting recess of the first joint and the second joint, and an aura ring contacting the flange contact surface of the first joint and the second joint. Characterized in that it at least consists of a first ring and a second ring Toto Komu hold the.

(Second invention)
In the expansion joint of the multi-tank water storage tank of the second invention, the first joint of the first invention, the first ring, the second joint, and the second ring have bolt through holes that can be fixed to each other by bolts and nuts. It is characterized by that.

(Third invention)
In the expansion joint of the multi-tank water storage tank according to the third aspect of the invention, a gap is provided between the pipes according to the first aspect or the second aspect of the invention.

(Fourth invention)
In the expansion joint of the multi-tank water storage tank of the fourth invention, the first ring and the second ring of the first to third inventions are formed with a convex part that fits into the O-ring mounting concave part via the O-ring. It is characterized by being.

  According to the present invention, it is possible to obtain an expansion joint that does not cause water leakage between the rectangular panel portion and the piping pipe even in the assembly of the rectangular panel with high dimensional accuracy and the piping pipe with low dimensional accuracy.

  According to the present invention, by using an expansion joint, it is possible to obtain an expansion joint that absorbs a dimensional error of the piping pipe and does not cause water leakage between the rectangular panel portion and the piping pipe under high water pressure. .

  According to the present invention, after the piping pipe is covered by the first joint and the second joint, the lengths of the piping pipes can be adjusted by screwing the ends of the pipes and adjusting the length. can do.

  According to the present invention, the water tightness is improved by the O-ring mounting concave portion that houses the O-ring and the convex portion that is formed on the ring that holds the O-ring.

(First invention)
The multi-tank water storage tank according to the first aspect of the present invention comprises a rectangular panel connected via a packing, and is composed of at least two water storage tanks having a desired square shape. Moreover, the said water storage tank is isolate | separated by the predetermined position with the partition plate, and is a multi-tank type water storage tank. Further, the water storage tank is provided with piping pipes straddling the inside of adjacent water storage tanks so that the water inside the first water storage tank can be drained to the outside of the water storage tank. The connecting portion of the piping pipe is covered with an expansion joint including a first joint and a second joint for adjusting the length of the piping pipe.

  The first joint has a flange formed at one end and an O-ring mounting recess for mounting an O-ring on the lower outer side of the flange. Further, the other end of the first joint is provided with a screw at the upper part or the lower part. The second joint has a flange formed at one end and an O-ring mounting recess for mounting an O-ring on the outside of the flange. Further, the other end of the second joint is provided with a screw at the upper part or the lower part. The screws provided in the first joint and the second joint are cut so as to be screwed together.

  The first ring and the first joint, and the second ring and the second joint are fitted to ends of two pipes. At that time, the O-ring is mounted in the O-ring mounting recess. The first joint and the second joint are screwed together. The first ring and the second ring are in contact with the contact surfaces of the first joint and the second joint, and bolts are attached to the flanges, the first ring and the second ring of the first joint and the second joint. By tightening the nut, the O-ring is pressed and the seal is completed.

(Second invention)
The expansion joint of the multi-tank water storage tank of the second invention is screwed together after covering the connecting portion of the piping pipe by the first joint and the second joint. Further, the first joint and the second joint, and the first ring and the second ring are provided with holes penetrating each other. The first joint and the second joint, and the first ring and the second ring are fixed to each other by inserting bolts into the holes and tightening the nuts, and the connected pipes can be set to a predetermined distance. Therefore, water does not leak from between the piping pipe and the partition plate or the rectangular panel.

(Third invention)
The expansion joint of the multi-tank water storage tank of the third invention is for absorbing an error due to the length of the piping pipe, and is attached so as to provide a gap between the two when connecting the piping pipe. ing. That is, when the first joint and the second joint are screwed together, the pipes can be piped to a desired dimension by shortening the length of the pipes.

(Fourth invention)
The first ring and the second ring have convex portions formed toward the O-ring mounting concave portion. The convex portion is sized to fit into the O-ring mounting concave portion. The O-ring mounting recess can be tightened with the O-ring after the O-ring is inserted, so that the convex portion is fitted and the O-ring is crushed to keep the water tightness firmly.
Note that the water storage tank of the present invention is synonymous with the liquid storage tank because there is no reason to limit the water storage to only water.

  FIG. 1 (a) is a plan view of a multi-tank water storage tank that is an embodiment of the present invention, and (b) is a side view of the multi-tank water tank. 1 (a) and 1 (b), a water storage tank 11 is firmly assembled in a square shape with an adhesive or the like via a packing or the like, which is not shown, for example, a square panel 12 having a size of 1000 mm × 1000 mm. Are partitioned by a partition plate 15 to constitute a first water tank 13 and a second water tank 14. The partition plate 15 is the same as the rectangular panel 12. The water storage tank 11 constitutes a multi-tank water storage tank having an arbitrary size and number depending on how the partition plate 15 is partitioned. The first water tank 13 and the second water tank 14 can alternately be drained and cleaned, repaired, or inspected.

  The first water storage tank 13 includes a first water intake port 121 that takes in water. The second water storage tank 14 includes a second water intake port 141 that takes in water. The partition plate 15 is provided with a partition valve 151 for moving the water in the first water tank 13 and the second water tank 14 back and forth. The said 2nd water storage tank 14 is equipped with the 2nd water discharge pipe 143 which drains the water in a tank. The water in the first water storage tank 13 is drained from the first water discharge pipe 142 across the inside of the second water storage tank 14. The first drain pipe 142 and the second drain pipe 143 are connected to the first drain pump 181 and the second drain pump 182.

  The piping pipe 16 straddling the inside of the second water storage tank 14 is connected to the piping pipe 161 and the piping pipe 162 by the expansion joint 17 and the length thereof is adjusted. In the present invention, since the length of the piping pipe 16 is accurately adjusted by the expansion joint 17, the piping pipe 161, the partition plate 15, and the second water storage tank 14 in a state where the water of one water storage tank is pumped out. There is no leakage from between the end of the first outlet pipe 142 and the first outlet pipe 142.

  FIGS. 2A and 2B are diagrams for explaining the structure of an expansion joint for connecting piping pipes according to an embodiment of the present invention. FIG. 2A is a partial cross-sectional view, and FIG. FIG. 3 is a three-dimensional assembly diagram showing a connection state between a piping pipe and an expansion joint in an embodiment of the present invention. 2A and 2B and FIG. 3, the expansion joint 17 includes a first joint 171 and a second joint 172 for adjusting the length of the pipe 16. The connection part of the piping pipe 161 and the piping pipe 162 is arrange | positioned through the space | gap 20 of predetermined spacing. The piping pipe 161 and the piping pipe 162 are covered with the expansion joint 17 together with the gap 20.

  The expansion joint 17 includes a first joint 171 and a first ring 173, a first O-ring 174 and a second O-ring 176, and a second joint 172 and a second ring 176. The first joint 171 has a flange 1711 formed at one end, and an O-ring mounting recess 1714 for mounting an O-ring 174 in contact with the piping pipe 161 outside the lower portion of the flange 1711. The other end of the first joint 171 is provided with a screw 1713 at the top or bottom.

  Like the first joint 171, the second joint 172 has a flange 1721 formed at one end, and an O-ring mounting recess 1724 for mounting a second O-ring 175 on the lower outer side of the flange 1721. Yes. The other end of the second joint 172 is provided with a screw 1723 at the top or bottom. Screws 1713 and 1723 provided on the first joint 171 and the second joint 172 are cut so as to be screwed together.

  The first ring 173 and the first joint 171, the second ring 176 and the second joint 172 are fitted to the ends of the two pipe pipes 161 and 162. At that time, the O-rings 174 and 175 are mounted in the O-ring mounting recesses 1714 and 1724. The first joint 171 and the second joint 172 are screwed together. The first ring 173 and the second ring 176 are in contact with the side surfaces of flanges 1711 and 1722 that are the contact surfaces of the first joint 171 and the second joint 172, and the first joint 171 and the second joint 172 are in contact with each other. The bolts 21 are attached to the flanges 1711 and 1722, the first ring 173, and the second ring 176, and the nut 22 is tightened, whereby the O-rings 174 and 175 are pressed to complete the seal.

  The length error in the pipes 161 and 162 is absorbed by the gap 20 in the expansion joint 17. Therefore, the piping pipes 161 and 162 have no error in the partition plate 15 or the first water discharge pipe 142 and the second water discharge pipe 143 in FIG. 1, so that no water leakage occurs even when water pressure is applied. Further, the first ring 173 and the second ring 176 are provided with a convex portion 1731 as can be seen in FIG. 2B, and the convex portion 1731 is partially inside the O-ring mounting concave portion 1714 via the O-ring 174. Is configured to enter. The convex portion 1731 can further improve the water tightness of the expansion joint 17. The first ring 173 and the second ring 176 can be fixed by welding to the piping pipes 161 and 162 after being fixed by the bolt 21 and the nut 22.

  The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments, and various designs can be made without departing from the matters described in the claims. It is possible to make changes. For example, the multi-tank water storage tank and the water storage tank in the claims and the detailed description of the invention have no reason to limit to water, and any content can be applied as long as it is liquid. Not too long. Moreover, the material and shape structure of a square panel, a partition plate, a water intake pipe, a water discharge pipe, and a piping pipe are not limited, and it goes without saying that well-known or publicly known ones can be used. Needless to say, the multi-tank water storage tank and the water storage tank are provided with optional incidental facilities or equipment. Furthermore, the assembly of the first joint and the second joint can be performed by a method of winding a seal tape and screwing, or by a vinyl chloride adhesive or the like.

(A) is a top view of the multi-tank type water storage tank which is an Example of this invention, (b) is a side view of a multi-tank type water storage tank. (Example 1) In the Example of this invention, it is a figure for demonstrating the structure of the expansion joint which connects a piping pipe, (A) is a partial cross section figure, (B) is a partially expanded view. In the Example of this invention, it is a three-dimensional assembly figure which shows the connection state of a piping pipe and an expansion joint.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Water storage tank 12 ... Square panel 121 ... 1st water intake 13 ... 1st water storage tank 14 ... 2nd water storage tank 141 ... 2nd water intake 142 ... 1st Drain pipe 143 ... Second drain pipe 15 ... Partition plate 151 ... Partition valve 16 ... Piping pipe 161 ... First pipe pipe 162 ... Second pipe pipe 17 ... Expansion joint 171: First joint 1711: Flange 1713: Screw 1714 ... O-ring mounting recess 172 ... Second joint 1721 ... Flange 1723 ... Screw 1724 ... O-ring mounting recess 173 ... 1st ring 1731 ... Projection 174 ... 1st O-ring 175 ... 2nd O-ring 176 ... 2nd ring 20 ... Gap 21 ... Bolt 22 ... nut

Claims (4)

A square tank is connected to form a water storage tank, and a multi-tank water tank assembled so as to be separated by a partition plate, a piping pipe that is piped across at least one inside of the multi-tank water tank, and In the expansion joint of the multi-tank water storage tank that is configured at least from a connecting portion that connects the piping pipe in the water storage tank,
A first joint having a flange and an O-ring mounting recess at one end and a screw provided at the upper or lower end of the other end;
A second joint provided with a flange and an O-ring mounting recess at one end, and provided with a screw threadedly engaged with the first joint at the lower or upper part of the other end;
An O-ring mounted in the O-ring mounting recess of the first joint and the second joint;
A first ring and a second ring that contact the flange contact surfaces of the first joint and the second joint to hold down the O-ring;
The expansion joint of the multi-tank type water storage tank characterized by comprising at least.   The multi-tank water storage tank according to claim 1, wherein the first joint, the first ring, the second joint, and the second ring are provided with bolt through holes that can be fixed to each other by bolts and nuts. Expansion joints.   3. The expansion joint for a multi-tank water storage tank according to claim 1 or 2, wherein a gap is provided between the pipes when connecting the pipes.   4. The projection according to claim 1, wherein the first ring and the second ring are formed with a convex portion that fits into the O-ring mounting concave portion via the O-ring. 5. The expansion joint of the described multi-tank water storage tank.

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